Definition of space-like in US English:

space-like

adjective

Physics
  • Resembling or having the properties of space; specifically designating an interval between two points in space-time that can in principle be observed to be separated only by space (that is, to occur at the same point in time as seen by a moving observer); relating to such an interval.

Origin

Early 20th century; earliest use found in Ludwik Silberstein (b. 1872). From space + -like.

Pronunciation

space-like

/ˈspeɪslʌɪk/